Abstract
Tenth-century Islamic alchemy attributed different roles to the figure of Hermes, all of which were retained in later alchemy. The playful changing of perspectives, in which Harmis al-Harāmisa perpetually changed his connotation, allowed for a complex game played at the border between science and literature. In the process, he turned from representing the venerable author of the early alchemical texts - master over ancient wisdom and scientific 'subject' - into an 'object' of research, into an allegory of the nucleus of the Great Work, and into a mysterious image of the secret that he himself had handed over to men.